Yarn holder



F. w. PAFFEN I 2,155,505

YARN HOLDER April 25, 1939.

Filed Dec. 11, 1936 I2 INVENTOR F1627 14 P/f/ff/V Patented Apr. 25

UNITED STATES PATENT OFFICE YARN )HOLDER.

Fred W. Pafien, Forest Hills, N. Y., assignor to Celanese Corporation ofAmerica, a corporation of Delaware This invention relates to yarnholders for use in looms and more particularly to an attachment adaptedto hold cop tubes whereby said cop tubes may be used in a larger varietyof looms, especially in automatic bobbin-changing looms.

The yarn for use in non-automatic looms is normally wound on small tubesor cones which are made of vulcanized fiber, pressed paper, cardboardand the like, and which have a thin metal ferrule, provided with aflange pressed thereon to form the base ofthe tube or cone. These tubesor cones are called cop tubes or pirns and are not only relativelyinexpensive but are also easily wound with yarn. For automaticbobbin-change ing looms, however, a special yarn holder, called a quill,is required. Quills used in automatic bobbin-changing looms aregenerally made of wood, the base being sometimes reinforced with metal,and have rings of heavy wire encircling the base, by which rings thequill is held by the spring holding jaws of the shuttle in the automaticbobbin-changing loom. These quills, by virtue of their construction, aremuch more expensive than cop tubes and require special machinery,including larger than normal spindles,

when yarn is wound thereon.

It is an object of this invention, therefore, to provide a novel,emcient and inexpensive device which may be quickly and effectivelyattached to a cop tube so that the same may be used as a quill in anautomatic bobbin-changing loom. With the device of the instant inventionit is necessary for the manufacturer of fabric to wind the yarn on coptubes only, for .use in looms of 36 all types. By winding yarn on coptubes, not only is the amount of reserve stock required by themanufacturer kept to a minimum, but alsoa smaller number of windingmachines, and all- 'of them of a'substantially single type, is required.40 Moreover, the spindles on such winding machines may be of one size,or at least of a single type, which factor also makes for economy.

, Other objects of this invention, together with certain details ofconstruction and combinations 5 of parts, will be described in thespecification and pointed out in the appended claim.

In the accompanying drawing: Figure 1 is varview of a cop tube afllxedto the attachment of the invention, said view being so partly incross-section to show the construction of said attachment,

Figure 2 is an elevational view of the attachment itself,

Figure 3 is an elevational view of the bottom so of the attachment, and

Figure 4 is a view similar to Figure 1, showing a modified form ofattachment. v

The cop tubes or pirns normally employed in non-automatic looms comprisea cone shaped hollow core I made of any suitable material, such 5 asvulcanized fiber, pressed paper, cardboard or similar material and mayhave a metal ferrule 2 pressed over one end or base of the same. Themetal ferrule is normally provided with a flange 3 and grooves 4 toprevent the yarn from slipping 1o off the core. The attachment oradapter which forms the subject matter of the instant inventioncomprises a base, generally indicated by reference numeral 5, of anysuitable material, but it is preferably formed of metal. The base iscounter- 16 sunk at 6 to form a, shoulder I. Extending from shoulder land integral with the base is a hollow spindle 8 of a diameter toreadily slip within thehollow core of the'cop tube. The spindle issplit, at one or more places, for a substantial distance along thevertical axis as is shown at 9, for 8.

- purpose which will hereinafter be pointed out. A

screw threaded opening II extends through the base and through ,thelower portion of the spindle, which opening is adapted to receive ascrew as I2 having an integral extension or shaft l3 surmounted by aball ll. The'base is also provided with annular ribs l5, or, instead ofribs, rings of heavy wire may be employed as is well understood in theart. A cop tube may be quickly and easily to transformed into a quillfor use in an automatic bobbin-changing loom by slipping the cop tubeover the spindle 8 until thr flange 3 rests on shoulder I of the base.Th; screw I2 is then rotated by means of a clock key or any suitable 86device which would fit over winding stem I6 of the screw. The screw isrotated in such a manner that the ball H on shaft I3 is pulleddownwardly against the sloping wall ll of the spindle. As will be seenfrom the drawing, the wall converges co downwardly so that as the ballis pulled down by the rotation of screw l2, the ball forces the splitwall of the spindle outwardly, thus firmly locking the cop tube inposition on the attachment. The base 5 is also counter-sunk as shown atI8 46 in order that the winding stem l6 should not extend below thelower edge of the device.

In Figure 4 there is shown a modification of the device shown inFigure 1. In this modification the extension. or shaft I2 isprovidedwith a so I conical tip which cooperates with the sloping wallof the spindle to lock the cop into position on the attachment. As willbe seen from Figure 4, the sloping inner wall of the spindle convergesupwardly. Therefore, in order to lock the cop in position on theattachment, the screw it is turned may be made therein without departingfrom the spirit of my invention.

Having described my invention, what I desir 10 to secure by LettersPatent is:

An attachment for .cop tubes or pirns comprising a base. a split hollowspindle integral therewith and having a tapering inner wall, said baseand spindle being screw threaded, a shaft, having a conical tip,threaded in said base and spindle and means on said shaft for impartingmovement'theretorelative to said spindle, the conicaltip on said shaftcooperating with the tapering inner wall for expanding said hollowspindle so as to lock the cop tube or pim in position ,on saidattachment.

FRED W. PAFFEN.

